Narration Studio - Audio & TTS

Narration Studio is a multi-track audio workstation to produce professional voiceovers, narrations, podcasts, and audio dramas on Android—no microphone required!

Whether you need quick, 100% free offline speech using your device's built-in TTS or cinematic voice acting powered by Google Gemini AI, Narration Studio gives you full acoustic control on an intuitive timeline.

🌟 KEY FEATURES

1. COMPLETE OFFLINE TTS (100% FREE & UNLIMITED)

• Built-in Device Speech: Use your device's installed Text-to-Speech engines (Google Speech Services, Samsung TTS, etc.) instantly.

• Multilingual: Access installed system voices across dozens of languages without internet or API keys.

• Full Studio Features: 2D spatial audio, BGM auto-ducking, sound effects, and master export all work with offline voices.

2. NEXT-GEN AI VOICE ACTING: GEMINI 3.8 FLASH TTS

• Expressive AI Speech: Nuanced, human-like voiceovers powered by Google Gemini 3.8 Flash.

• 12 Built-in AI Personalities: Diverse profiles (Puck, Charon, Kore, Fenrir, Aoede, Leda, etc.) spanning narrative to energetic tones.

• Vocal Acting Directives & Tags: Express whispers, laughter, sighs, gasps, cries, shouts, and moods (happy, sad, angry, surprised, excited).

• Bring Your Own Key (BYOK):

- 1-Tap In-App Setup: Connect your Google AI Studio API key in seconds.

- Free Tier Compatible: Generate within Google's available free tier (*Subject to Google's terms and availability).

- Your Key Stays on Your Device: Stored locally and sent directly to Google's official Gemini API—never through our servers.

• Smart Local Cache: Cached audio eliminates redundant API calls when adjusting the timeline, volume, or pan.

3. AI CAST & CHARACTER MANAGEMENT

• Reusable Personas: Save character profiles combining voice, acting directives, and emoji avatars.

• Timeline & Spatial Pad Avatars: Visual emoji pins show who is speaking across the timeline and 2D stage.

• Quick Casting: Assign characters to any timeline clip with one tap for multi-speaker dramas.

• Instant Auditions: Preview character styles instantly using cached audio—no new API generation required.

4. 2D SPATIAL AUDIO STAGE (XY PAD)

• Visual Sound Stage: Position narration clips on an intuitive 2D grid with clear character pins.

• Smooth Stereo Pan: Left-to-right acoustic panning (-1.0 to +1.0).

• Acoustic Depth: Visual pulses indicate reverberation and spatial distance.

5. BGM MIXING & SMART AUDIO DUCKING

• Custom Music Import: Load BGM tracks in MP3, WAV, AAC, M4A, or FLAC.

• Smart Auto-Ducking: Music volume dips automatically whenever speech plays.

• Mute BGM during SFX: Optional instant BGM cut during key sound effects for punchy impact.

• Smooth Fade-Out: Built-in tail fade prevents abrupt track endings.

6. SOUND EFFECTS & REVERB PRESETS

• 30+ Built-in SFX: Impacts, chimes, lasers, applause, plus custom audio file loading.

• Reverb Environments: Concert Hall, Living Room, Cave/Echo, and Vintage Radio.

7. SMART TEXT IMPORTER & SRT SYNC

• Smart Text Importer: Paste long scripts to auto-split by sentence or line break with custom pause intervals.

• SRT Subtitle Sync: Import .srt files to generate timed narration clips automatically.

• Script Automation Tags: Control speech within subtitles using [v "Voice"], [engine gemini], [char "Name"], [act "Directive"], [mutebgm], [s 1.2], [p 1.0], [g 0.9], [l -0.5], [se "name"].

8. STUDIO MASTER EXPORT

• 44.1kHz, 16-bit uncompressed WAV master export.

• Synchronized .srt subtitle export ready for Premiere Pro, DaVinci Resolve, and CapCut.

🎯 PERFECT FOR

• Video Creators (YouTube, TikTok, Reels, Shorts)

• Multi-character voice dramas and audio plays

• Tutorials, explainers, and corporate presentations

• Audiobooks, guided meditations, and podcasts

Turn written words into living, cinematic soundscapes with Narration Studio!